GB2240622B - A device for controlling fluid flow through extraction cartridges - Google Patents

A device for controlling fluid flow through extraction cartridges

Info

Publication number
GB2240622B
GB2240622B GB9002566A GB9002566A GB2240622B GB 2240622 B GB2240622 B GB 2240622B GB 9002566 A GB9002566 A GB 9002566A GB 9002566 A GB9002566 A GB 9002566A GB 2240622 B GB2240622 B GB 2240622B
Authority
GB
United Kingdom
Prior art keywords
fluid flow
controlling fluid
extraction cartridges
cartridges
extraction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
GB9002566A
Other versions
GB9002566D0 (en
GB2240622A (en
Inventor
Simon Peter Joel
Alastair Geoffrey Mccow Deller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CITY AND HACKNEY HEALTH AUTHOR
Original Assignee
CITY AND HACKNEY HEALTH AUTHOR
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CITY AND HACKNEY HEALTH AUTHOR filed Critical CITY AND HACKNEY HEALTH AUTHOR
Priority to GB9002566A priority Critical patent/GB2240622B/en
Publication of GB9002566D0 publication Critical patent/GB9002566D0/en
Publication of GB2240622A publication Critical patent/GB2240622A/en
Application granted granted Critical
Publication of GB2240622B publication Critical patent/GB2240622B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/04—Solvent extraction of solutions which are liquid
    • B01D11/0484—Controlling means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • G01F23/292—Light, e.g. infrared or ultraviolet
    • G01F23/2921—Light, e.g. infrared or ultraviolet for discrete levels
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
    • G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)
GB9002566A 1990-02-06 1990-02-06 A device for controlling fluid flow through extraction cartridges Expired - Fee Related GB2240622B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9002566A GB2240622B (en) 1990-02-06 1990-02-06 A device for controlling fluid flow through extraction cartridges

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9002566A GB2240622B (en) 1990-02-06 1990-02-06 A device for controlling fluid flow through extraction cartridges

Publications (3)

Publication Number Publication Date
GB9002566D0 GB9002566D0 (en) 1990-04-04
GB2240622A GB2240622A (en) 1991-08-07
GB2240622B true GB2240622B (en) 1993-08-18

Family

ID=10670471

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9002566A Expired - Fee Related GB2240622B (en) 1990-02-06 1990-02-06 A device for controlling fluid flow through extraction cartridges

Country Status (1)

Country Link
GB (1) GB2240622B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115107374B (en) * 2022-07-26 2023-12-19 沧州铭洋自动化技术有限公司 Intelligent ink absorbing system of corrugated board digital printer

Also Published As

Publication number Publication date
GB9002566D0 (en) 1990-04-04
GB2240622A (en) 1991-08-07

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19950206